Jonathan h



(No Model.)

J. H. VAIL. FEED WATER HEATER.

No.'404.512.. 4 Patented June 4, 1889.

wuewboo UNITED STATES PATENT OFFICE.

JONATHAN H. VAIL, OF NEIV YORK, N. Y.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 404,512, dated June 4, 1889.

7 Application filed June 9, 1838. $erial No. 276,617. (No model.)

To all whom it may concern.-

Be it known that I, JONATHAN H. VAIL, a citizen of the United States, residing at New York city, in the county and State of New York, have invented a certain new and useful Improvement in Combined Exhaust-Mufflers and Feed-Eater Heaters, of which the following is a specification.

The main object of my invention is to effectively combine in one structure a muffler for preventing the noise due to the escape of exhaust-steam and the escape of moisture and oil with such steam, and a heater for the feedwater supplied to the boiler; but my object is, further, to increase the effectiveness of exhaust-mufflers and feed-water heaters themselves over those which have hitherto been used, and to effectively remove sediment from the feed-water, so as to supply clean hot water to the boiler.

My invention consists in the novel devices and combinations of devices employed by me in accomplishing the above-named objects, as hereinafter set forth and claimed.

The accompanying drawing is a sectional View of a combined muffler and feed-water heater embodying my invention.

A A is the exhaust-pipe from the engine, and B the exit-passage to the stack or to the external air. The upper end of the pipe A (which is shown in elevation) is closed by a cap or cover a, and the upper portion of the pipe, which is inclosed within a chamber 0, is pierced with numerous small holes 1), whose combined area is preferably at least fifty per cent. greater than that of the pipe itself. Upon the outside of the pipe between the rows of holes I), I form or place inclined deflecting flanges 11 c encircling the pipe. The exit-pipe B leads from the upper end of chamber 0. The exhaust -steam, therefore, instead of being allowed to issue forcibly in sudden jets from the pipe, spreads itself through all the various perforations b' and fills the large surrounding chamber 0. The flanges c prevent the steam as it issues from the holes from taking an immediate upward course and give it a still further lateral deflection to cause it to completely fill the chamber. The ch amber being thus filled with the steam the same forms a cushion which muffles any noise which might occur from the steam escaping from the holes; and the steam in the chamber escapes through the pipe B vided into branching pipes h h, which pipes all extend spirally around the exhaust-head and fill this portion of the chamber 0, and finally terminate in a single nozzle F, which extends down into the settling-chamber G,below the heating-chamber C.

It will be seen that the water passing through the pipes h his completely surrounded by the steam,which fills every part of the chamber O, and thus becomes heated before it enters the chamberG. In the chamber G the water remains and deposits-its sediment, and then rises through tubes H H, which are surrounded by the coil h h, into the. clear hotwater chamber I, which is situated within the chamber 0 above the exhaust-head, being supported by the tubes H H and the coil h h, and from which a pipe K leads to the boiler. The Water remains in the chamber G comparatively at rest and exposed to a higher temperature than is attained in the heatingchamber, since the hottest of the exhaust steam is in the pipe A passing through the chamber G. The deposit of the sediment is in this way facilitated. I prefer to provide filters t' t' at the lower ends of tubes H H, to still further clear the Water before it goes to the boiler. The clear hot-water chamber I being surrounded by the steam passing from the exhaust head to the exit-pipe, the water therein is still kept hot by such steam.

Hand-holes 7c are provided in the chambers C and G, respectively. I prefer to provide a scum-chamber L, connected with the upper part of chambers G and I, respectively,

by tubes ZZ', provided with valves for open- ICC) ing and closing them, whereby the scumchamber may be used to blow oit the scum from the clear-Water chamber, when desired.

\Vhat I claim is- 1. The combination, with an exhaust-pipe, of a chamber surrounding a portion of the same wherein the feed-Water is heated, a settling'chamber below said heating-chamber also surrounding the exhaust-pipe and receiving the heated water, and a chamber above said settling-chamber and connected therewith by tubes through Which the clear hot Water rises, substantially as set forth.

2. An exhaust-pipe having a number of small perforations in its upper portion, and deflecting flanges above said perforations, in combination with a chamber surrounding said perforated portion, and an exit from such chamber, substantially as set forth.

3. The combination of an exhaust-pipe having a number of small perforations, a chamber surrounding the perforated portion of said pipe, and a coil of pipe in said chamber through which feed-water passes, substantially as set forth.

at. The combination of an exhaust-pipe, a chamber surrounding a portion of the same, a feed-Water coil in said chamber, a settling chamber connected With said coil and also surrounding a portion of the exhaust-pipe, and a clear-Water chamber receiving the wa ter from said settling-chamber, substantially as set forth.

5. The combination of an exhaustpipe, a heating-chamber surrounding a port-ion of the same, an outlet from said pipe into said chamber, an exit-pipe leading from the top of said chamber, a settling-chamber surrounding the exhaust-pipe below said feedin gehamber \vi th which said feed-Water coil communicates, a

clearavater chamber within the hcati n g-ehamher and communicating with the boiler, and tubes extending from said settling-chamber to said clear-water chamber, substantially as set forth.

6. The combination of the settling-chamber,

the clear-Water chamber above the same, the

scum-chamber, passages to said scum-chamber from near the top of said settling-chamber and of said clear-water chamber, and valves in said passages, substantially as set forth.

7. The combination, with a vertical exhaust steam pipe, of annular downwardly-inclined flanges within the same, and a receptacle below said flanges for the water and oil which collect on said flanges, substantially as set forth.

8. The combination of an exhaust-pipe having a number of small. perforation s, a heatingchamber surrounding the perforated portion of said pipe, a coil of pipe in said chamber through which feed-water passes, a settlingehamber connected With said coil and also surrounding a portion of the exhaust-pipe, a clear-Water chamber connected with said settling-chamber, and an exit from said heatingchamber, substantially as set forth.

9. The combination of the cxhaust-pipe, the settling-chamber. the clear-Water chamber receiving the purified Water, and an annular passage around said clear-water chamber connected with said exhaustrpipe, whereby the exhaust-steam surrounds said clear-water chamber, substantially as set forth.

This specification signed and witnessed this 7th day of June, 1888.

JONATHAN II. VAIL.

it/messes: 7

WILLIAM PELZER, A. \V. KIDDLE. 

